1.
Ritonga EM, Surya E, Syahputra E. Development of Learning Devices Oriented Model Eliciting Activities to Improve Mathematical Problem Solving Ability Junior High School Students. IJSBAR. 2017;33(3):42-52. Accessed October 12, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7336